Abstract: A method and assembly for locking/unlocking, formed of one of several a removable module (2) and a mount plate (3). The assembly includes a support wall (4) supporting each removable module (2). The removable module (2) being provided with two lugs (5) through which an aperture passes. The lugs (5) extending out of the removable (2) so that they can be inserted into opening (7) formed in the support wall (4). This assembly is equipped with a locking/unlocking system (100) having a lever (10) extending under the support wall (4) and provided with circular eccentric cams (11) arranged with offset axial symmetry in the form of an S about a central rotation axle (20) perpendicular to the support wall (4). The lever (10) being fixed in terms of rotation on this central axle (2) at equal distances from the two openings (7).

Abstract: The invention relates to a structure (1) for housing electronic modules (2) provided with a system for inserting, locking and extracting such modules (2) including adjacent individual recesses separated by side rails and a motherboard (13), each recess being intended for receiving an electronic module (2). The system for inserting, locking and extracting includes one lever arm (3) per individual recess (10) provided at a distal end with a device for pivoting on the motherboard (13) and guiding device (31) capable of engaging with a circulation device (22, 22?) connected to the electronic module (2) in order to couple connectors of the electronic module (2) with the connectors of the motherboard (13), as well as a device for automatic locking and unlocking of a proximal end (3p) of each lever arm (3).

Abstract: A method and assembly for locking/unlocking, formed of one of several a removable module (2) and a mount plate (3). The assembly includes a support wall (4) supporting each removable module (2). The removable module (2) being provided with two lugs (5) through which an aperture passes. The lugs (5) extending out of the removable (2) so that they can be inserted into opening (7) formed in the support wall (4). This assembly is equipped with a locking/unlocking system (100) having a lever (10) extending under the support wall (4) and provided with circular eccentric cams (11) arranged with offset axial symmetry in the form of an S about a central rotation axle (20) perpendicular to the support wall (4). The lever (10) being fixed in terms of rotation on this central axle (2) at equal distances from the two openings (7).

Abstract: The invention relates to a structure (1) for housing electronic modules (2) provided with a system for inserting, locking and extracting such modules (2) including adjacent individual recesses separated by side rails and a motherboard (13), each recess being intended for receiving an electronic module (2). The system for inserting, locking and extracting includes one lever arm (3) per individual recess (10) provided at a distal end with a device for pivoting on the motherboard (13) and guiding device (31) capable of engaging with a circulation device (22, 22?) connected to the electronic module (2) in order to couple connectors of the electronic module (2) with the connectors of the motherboard (13), as well as a device for automatic locking and unlocking of a proximal end (3p) of each lever arm (3).

Abstract: A latch mechanism for tool cabinets, for releasably holding a tool cabinet drawer in a closed position within a tool cabinet housing, comprising a handle for fixed installation about a front panel of the tool cabinet drawer. A latch release bar is movably attached to either one of the drawer front panel and the handle such that the latch release bar is installed in the vicinity of the handle, the release bar being movable between a rest position and a released position.

Abstract: Raw wet phosphoric acid which has been extracted from the solvent and regenerated with water according to the process of U.S. Pat. No. 3,607,029 is subsequently subjected to treatment with steam or a hot gas to afford concentrated phosphoric acid with a F/P.sub.2 O.sub.5 ratio of less than 10 ppm. The acid obtained is suitable for use in the food industry.

Abstract: The invention relates to the purification of wet phosphoric acid in which raw, wet acid extracted by means of a solvent, desulfated by means of a calcium ion aqueous solution and regenerated by means of water, is then treated with water vapor or hot gases by which a concentrated solution of phosphoric acid with a ponderal ratio F/P.sub.2 O.sub.5 less than 10 ppm is obtained.